Iridium(IV) iodide

Last updated
Iridium(IV) iodide
Names
Other names
Iridium(IV) iodide, tetraiodoiridium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.279 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 232-206-3
PubChem CID
  • InChI=1S/4HI.Ir/h4*1H;/q;;;;+4/p-4
    Key: BUUWLOZTIYBNKB-UHFFFAOYSA-J
  • I[Ir](I)(I)I
Properties
I4Ir
Molar mass 699.835 g·mol−1
AppearanceBlack powder
Melting point 100 °C (212 °F; 373 K)
insoluble
Structure
hexagonal
Related compounds
Related compounds
 Iridium triiodide, platinum tetraiodide
Hazards
GHS labelling:
GHS-pictogram-exclam.svg
Warning
H315, H319, H335
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Iridium(IV) iodide is a binary chemical compound of iridium and iodide with the chemical formula IrI
4. [1] [2] [3]

Contents

Preparation

Iridium(IV) iodide can be obtained by reacting dipotassium hexachloroiridate or hexachloroiridic acid with an aqueous solution of potassium iodide. [4] [5]

Properties

Iridium tetraiodide forms black crystals, does not dissolve in water and alcohol. [6] [7] [8] In alkali metal iodide solutions, the compound dissolves easily to give a ruby red solution, forming complex salts. [5]

The compound decomposes when heated:[ citation needed ]

IrI4 → Ir + 2I2

Uses

Iridium(IV) iodide can be used as a catalyst in organic chemistry. [9] [8]

References

  1. ↑ "CAS 7790-45-6 Iridium tetraiodide - Alfa Chemistry". alfa-chemistry.com. Retrieved 3 May 2023.
  2. ↑ "Iridium tetraiodide". American Elements . Retrieved 3 May 2023.
  3. ↑ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3507. ISBN   978-0-412-30120-9 . Retrieved 3 May 2023.
  4. ↑ "Studies on iridium compounds". discover.dtic.mil. Retrieved 2023-10-16.
  5. 1 2 Kandiner, H. J. (2013-09-03). Iridium (in German). Springer-Verlag. ISBN   978-3-662-12128-3.
  6. ↑ Comey, Arthur Messenger (1896). A Dictionary of Chemical Solubilities Inorganic: xx, 515 p. Macmillan & Company. p. 193. Retrieved 3 May 2023.
  7. ↑ Roscoe, Henry Enfield; Schorlemmer, Carl (1895). A Treatise on Chemistry. D. Appleton. p. 445.
  8. 1 2 "Iridium(IV) iodide". Alfa Aesar . Retrieved 3 May 2023.
  9. ↑ Nobel, Dominique (8 August 1996). "Method for preparing iridium iodides and use thereof as catalysts" . Retrieved 3 May 2023.
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